of Incoming dialup lines (PRI):|
All dialup servers reporting no problems
This table above shows the current load on each of Illuminati Online's main service hosts. Routers and minor hosts are not included.
From left to right, the columns in the table show the host description and name, the total uptime (in days, hours, and minutes), total number of interactive users currently logged on, the immediate system load, the five minute average of the system load, and the fifteen minute average of the system load.
The units of load are arbitrary, and are not necessarily equivalent between machines. Some of these machines can operate well with no noticeable latency under a load that would be far too high for another. The meaningfulness of a given load measurement for a given machine is apparent only provided one has some familiarity with the machine and its historical loads and related performance.
Each row represents a major IO host. If a host is down or not reporting (sometimes the reporting mechanism fails while the host is actually operating quite well), it will be displayed as "DOWN" in the uptime field.
Illuminati.io.com, is the main DNS (domain name server) host of io.com. Domain name service is the mechanism by which the familiar machine names and domains (such as illuminati.io.com) get translated into the IP addresses (such as 126.96.36.199) that Internet computers actually understand. Depending upon client configurationm, if the main DNS server fails or is otherwise unavailable, requests are handled by the secondary DNS server, assassins (188.8.131.52). If both servers are unavailable, computers relying on IO's DNS servers will be unable to connect to remote sites. For this reason, illuminati.io.com is probably the most critical host that customers use explicitly. (Our routers are more important, but should be transparent.) Illuminati's load should always be very low, and its uptime is usually quite high.
Mail service is hosted by a variety of machines. First, we have Deliverator.io.com which holds our mail spool and acts as an NFS server to the rest of our mail cluster. Deliverator also acts as 'mail.io.com' and serves as a POP and IMAP server.
Xanadu.io.com acts as our primary delivery server (mx.io.com). It receives mail destined for our accounts and processes the messages into individual mail inboxes.
Anarchy and Discordia.io.com both act as smtp.io.com (the mail hosts used to send mail to other addresses on the Internet).
Mx2 and Mx3.io.com are yet two more machines that are in our mail cluster. These machines (Mx2 in Austin and Mx3 in Houston) act as 'backup' incoming mailservers. If for any reason the primary mailserver stops answering or goes down, these two machines collect and hold e-mail until any problems can be resolved.
Www-01.io.com and www-03.io.com are the main web servers for IO. These server handle all of IO's official web pages, along with all of IO's regular customer pages. Note that IO customers that have virtual domains have their web pages serviced by one of the machines specifically designated for this duty (see below). We usually call www-01 "triple-dub oh-one" and www-03 "triple-dub oh-three". These hosts are setup in a load-balancing manner. You might ask: "Where is www-02?". Only our webmaster knows.
Fnord.io.com and eris.io.com are the UNIX user hosts reserved for IO's telnet customers and dial-up customers with access. "Users" should show the total number of users interactively logged on to the host, and might be a rough aproximation of its load. Fnord and Eris are both Pentium ][ 350s with 256 megs of RAM running RedHat Linux. We also have a BSD Development machine (Dillinger) in place for those who prefer a FreeBSD environment.
Pentagon.io.com, Langley.io.com, whitehall.io.com, and kremlin.io.com are all web-service hosts devoted to serving the web pages for our virtual domain customers. Load has been carefully distributed between the four machines, and all are somewhat lightly-loaded resulting in speedy service of virtual domain pages.